mackenzie



(No Model.)

J. D. MACKENZIE.

MEANS FOR USE IN THE GLAZING 0F ROOES ANDOTHER STRUCTURES.

No. 356,652. Patented-Jan. 25, 1887.

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v Unrrnn STATES PATENT JOSEPH l). HACKENZIE, OF LONDON, ENGLAND, ASSIGNOR OF ONE-HALF TO IVILIJIAM ATOHISON, OF SAME PLACE.

MEANS FOR USE IN THE GLAZING OF ROOFS AND OTHER STRUCTURES.

tEPBCIEICATION {drilling part of Letters Patent NO. 356,652, dated January 25, 1887.

Application filed June 18, 1384. Serial No. 135,331. (No model.) Patented in England January 18, 1884, No. 1.680, and March 4,

To a-ZZ whom it may concern:

Be it known that I, Josnrn DUKE llIACKEN- ZIE, a subject of the Queen of Great Britain, residing at London, England, have invented new and useful Improvements in Means for Use in the Glazing of Roofs and other Structures, (for which patents have been applied for in Great Britain, dated J anuary 18, 1884, No. 1,690, and March 4, 1884:, No. 4,360,) of which the following is aspecification, reference being had to the accompanying drawing.

My invention relates to the glazing of roofs, conservatories, and other structures, and is designed to enable this operation to be performed without the use of putty or like material.

According to my improvements I construct a sash-bar with a solid core of iron or steel, consisting of 9.- central vertical web and lateral grooved or channeled flanges, and with a pro tective sheath or covering of thin sheet lead, copper, or other ductile metal not subject to corrosion, and I apply over this protective cvering an outer covering of sheet metal or other glazing material.

This invention is illustrated by the acconr panying drawing, in which the figure is a transverse sectional view through a sash-bar and glasses.

In order to enable those skilled in the art to make and use my invention, I will now describe the same in detail, referring to the drawing, where the letter A indicates the core of the sashbar, B the noncorrosive and protective sheath or covering, and C the lead or other ductile material.

The non-corrosive covering -13 is applied by rolling or otherwise to the central web or feather of the iron or steel core A of the sashbar and to the groove or channel on each side of the-said central web, so that if any water 0 should percolate between the sash-bar and the glazing material it will not come in contact with the metal core, but will be received and conducted away by that portion of the protective sheath or covering which is within the groove or channel. The metal core is thus completely protected against contact with substances liable to cause corrosion thereof. The outer covering, G, of lead or other ductile glazing material, is folded down after the plates of glass are placed on the flanges of the bar A, so that the said covering overlaps the edges of the glass.

Having thus described my invention, what I claim is- A solid metal sash-bar of substantially the form shown, having its central web or feather and the inner surfaces of the grooves or channels covered by a protective sheet-hing, B, in combination with the glazing material 0, applied over said sheathing and covering the flanges of the sash-bar and part of its central web or feather and overlapping the glass, subtially as and for the purposes set forth.

In testimony whereof I have hereunto signed 6 5 my name in the presence of two subscribing witnesses.

JOSEPH D. MACKENZIE.

Witnesses: JOHN GILLESPIE, Mercht, 24 Finsbm'y Circus, London, E. C.

J NO. '1. PENNYcooK, Engineer, 61 Paynton Brit, Stamford Hill, London, N. 

